CA2669466C - Appareillage et methode permettant de plier les bords de films - Google Patents

Appareillage et methode permettant de plier les bords de films Download PDF

Info

Publication number
CA2669466C
CA2669466C CA 2669466 CA2669466A CA2669466C CA 2669466 C CA2669466 C CA 2669466C CA 2669466 CA2669466 CA 2669466 CA 2669466 A CA2669466 A CA 2669466A CA 2669466 C CA2669466 C CA 2669466C
Authority
CA
Canada
Prior art keywords
film
folding
idler roll
guide
positioning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CA 2669466
Other languages
English (en)
Other versions
CA2669466A1 (fr
Inventor
Shaun Eugene Pirtle
Khurrum Shamsi
Robert Earl Cochlin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Paragon Films Inc
Original Assignee
Paragon Films Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41529435&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2669466(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Paragon Films Inc filed Critical Paragon Films Inc
Publication of CA2669466A1 publication Critical patent/CA2669466A1/fr
Application granted granted Critical
Publication of CA2669466C publication Critical patent/CA2669466C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00Winding webs
    • B65H18/08Web-winding mechanisms
    • B65H18/10Mechanisms in which power is applied to web-roll spindle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31FMECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/0003Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
    • B31F1/0006Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof
    • B31F1/0009Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs
    • B31F1/0016Folding edges; Folding edges combined with joining; Reinforcing edges during the folding thereof, e.g. by introducing a thread; Folding the edges of a sheathing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31FMECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F7/00Processes not otherwise provided for
    • B31F7/006Processes not otherwise provided for edges, e.g. sheet edges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00Folding thin material
    • B65H45/12Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/22Longitudinal folders, i.e. for folding moving sheet material parallel to the direction of movement
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/41Winding, unwinding
    • B65H2301/414Winding
    • B65H2301/4143Performing winding process
    • B65H2301/41432Performing winding process special features of winding process
    • B65H2301/414322Performing winding process special features of winding process oscillated winding, i.e. oscillating the axis of the winding roller or material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/41Winding, unwinding
    • B65H2301/414Winding
    • B65H2301/4148Winding slitting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/10Handled articles or webs
    • B65H2701/11Dimensional aspect of article or web
    • B65H2701/112Section geometry
    • B65H2701/1123Folded article or web
    • B65H2701/11234C-folded
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/10Handled articles or webs
    • B65H2701/17Nature of material
    • B65H2701/175Plastic
    • B65H2701/1752Polymer film
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/2419Fold at edge
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495Thickness [relative or absolute]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31855Of addition polymer from unsaturated monomers
    • Y10T428/31909Next to second addition polymer from unsaturated monomers
    • Y10T428/31913Monoolefin polymer

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Winding Of Webs (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Packages (AREA)
  • Wrappers (AREA)

Abstract

Des films pré-étirés peuvent être utilisés pour augmenter la vitesse à laquelle des charges peuvent être emballées et pour minimiser l'effort nécessaire lorsque l'on utilise un film à main classique. Toutefois, les bords des films pré-étirés s'endommagent facilement, ce qui peut causer une déchirure ou une défaillance du film en cours d'utilisation. Cette invention porte sur des dispositifs, des systèmes et des procédés pour plier les bords du film, ce qui permet d'obtenir un film moins susceptible de s'endommager et plus facile à utiliser.
CA 2669466 2008-07-21 2009-06-18 Appareillage et methode permettant de plier les bords de films Active CA2669466C (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US8239808P 2008-07-21 2008-07-21
US61/082,398 2008-07-21
US12/470,238 2009-05-21
US12/470,238 US8221298B2 (en) 2008-07-21 2009-05-21 Apparatus and method for folding film edges

Publications (2)

Publication Number Publication Date
CA2669466A1 CA2669466A1 (fr) 2010-01-21
CA2669466C true CA2669466C (fr) 2013-10-22

Family

ID=41529435

Family Applications (3)

Application Number Title Priority Date Filing Date
CA 2669466 Active CA2669466C (fr) 2008-07-21 2009-06-18 Appareillage et methode permettant de plier les bords de films
CA 2669502 Active CA2669502C (fr) 2008-07-21 2009-06-18 Appareillage et methode d'enroulement de film sur un rouleau
CA 2669504 Abandoned CA2669504A1 (fr) 2008-07-21 2009-06-18 Film oriente en cours de traitement pour le marche des films etirables

Family Applications After (2)

Application Number Title Priority Date Filing Date
CA 2669502 Active CA2669502C (fr) 2008-07-21 2009-06-18 Appareillage et methode d'enroulement de film sur un rouleau
CA 2669504 Abandoned CA2669504A1 (fr) 2008-07-21 2009-06-18 Film oriente en cours de traitement pour le marche des films etirables

Country Status (3)

Country Link
US (7) US8221298B2 (fr)
CA (3) CA2669466C (fr)
MX (3) MX2009007154A (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140144589A1 (en) * 2008-07-21 2014-05-29 Paragon Films, Inc. Apparatus, Methods, and Compositions for Producing Oriented Stretch Film In-Process
US8221298B2 (en) 2008-07-21 2012-07-17 Paragon Films, Inc. Apparatus and method for folding film edges
US20110151217A1 (en) * 2009-12-18 2011-06-23 Paragon Films, Inc. Oriented Film Produced In-Process for Use in the Power Stretch Film Market
ITRM20120466A1 (it) * 2012-10-01 2014-04-02 Akro Flex S A S Di Garegnani Anton Io & C "apparato per la realizzazione di un film estensibile costituito da strisce bordate avvolte su una stessa bobina"
US9162403B2 (en) 2013-03-15 2015-10-20 Davis-Standard, Llc Apparatus for manufacturing and processing pre-stretch films having strips of increased thickness
ITPR20130067A1 (it) * 2013-08-30 2015-03-01 Forpac S R L Fardellatrice e procedimento di confezionamento a freddo di oggetti con film estensibile
DE102014205173A1 (de) * 2013-10-15 2015-04-16 Windmöller & Hölscher Kg Wickelvorrichtung
ITVR20130257A1 (it) * 2013-11-26 2015-05-27 Bema Srl Testa per la fasciatura di carichi, particolarmente carichi pallettizzati e rispettivo metodo di funzionamento
DE102014006933B4 (de) * 2014-05-10 2016-02-25 Sml Maschinengesellschaft M.B.H. Verfahren und Vorrichtung zur Herstellung einer Anzahl aufgewickelter Folienrollen
US9630799B2 (en) * 2014-07-16 2017-04-25 Anthony Galea Method and apparatus for fabricating stretch film rolls
GB2529892B (en) * 2014-09-08 2017-04-12 Imagination Tech Ltd Efficient loading and storing of data
JP2017100372A (ja) * 2015-12-02 2017-06-08 コニカミノルタ株式会社 フィルムロールの製造方法
JP6872894B2 (ja) * 2015-12-22 2021-05-19 住友化学株式会社 フィルム製造方法
JP6875116B2 (ja) * 2015-12-22 2021-05-19 住友化学株式会社 フィルム製造方法およびフィルム巻出方法
CA2976640C (fr) * 2016-08-17 2022-09-06 Les Emballages Trium Inc. Procede de fabrication de sacs destines a des articles d'emballage, et sac produit selon ledit procede
CN106742698B (zh) * 2016-12-13 2019-07-12 厦门聚富塑胶制品有限公司 一种拉伸缠绕膜的纸芯及拉伸缠绕膜的制造装置
CN110203731A (zh) * 2019-06-13 2019-09-06 六安堰山自动化设备销售有限公司 一种铝箔收卷装置
WO2021052826A1 (fr) 2019-09-18 2021-03-25 Windmöller & Hölscher Kg Dispositif d'enroulement pour enrouler une bande de matière
EP4297969A1 (fr) 2022-04-07 2024-01-03 Paragon Films Inc. Systèmes, appareil et procédés pour la création de films plastiques minces
EP4306466A1 (fr) 2022-07-13 2024-01-17 SML Maschinengesellschaft m.b.H. Procédé d'enroulement d'une bande de matière et dispositif d'enroulement

Family Cites Families (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US610231A (en) 1898-09-06 gally
US552087A (en) 1895-12-24 Fastening for gloves
US556522A (en) 1896-03-17 Fountain-pen
US562694A (en) 1896-06-23 Geaphophone oe device for eepeoducing sounds from
US541738A (en) 1895-06-25 Utensil
US553139A (en) 1896-01-14 smith
US596743A (en) 1898-01-04 Pedal
US501359A (en) 1893-07-11 Air beake
US545884A (en) 1895-09-10 Artificial-stone lintel and sill
US1843087A (en) * 1930-06-10 1932-01-26 American Stay Company Piping and the like
US1905899A (en) * 1930-11-07 1933-04-25 Hudson Sharp Machine Co Method of paper folding, winding, and cutting, and mechanism therefor
US2128664A (en) * 1936-04-06 1938-08-30 Grand Rapids Fibre Cord Compan Method of producing imitation reed fabric
US2897729A (en) * 1955-10-05 1959-08-04 Bemis Bro Bag Co Apparatus for the manufacture of draw cord bags
US3058402A (en) * 1958-11-10 1962-10-16 Kugler Emanuel Making draw string bags from heat sealable material
NL262837A (fr) * 1960-03-28
US3399096A (en) * 1965-02-04 1968-08-27 St Regis Paper Co Method and apparatus for forming reinforced edges in packaging blanks
US3978191A (en) * 1974-03-11 1976-08-31 Baltimore Aircoil Company, Inc. Process and apparatus for preparing double edge on flexible sheet material
US4252154A (en) * 1979-06-04 1981-02-24 Alexander Iii William J Loom takeup apparatus
US4668463A (en) * 1982-07-21 1987-05-26 Clopay Corporation Method of making linear low density polyethylene film
US4492257A (en) * 1982-12-30 1985-01-08 Alexander Iii William J On loom cloth takeup with oscillating guide roll
US4763852A (en) * 1985-08-26 1988-08-16 Smith Donald L Oscillating guide roll
FR2617123B1 (fr) * 1987-06-26 1989-12-29 Newtec Int Bande avec renfort longitudinal, procede d'emballage et emballage comportant une telle bande, installation et machine pour la mise en oeuvre du procede d'emballage, et dispositif pour la realisation d'une telle bande
DE3728888A1 (de) * 1987-08-29 1989-03-09 Bentz & Sohn Melitta Verfahren zur herstellung von zuschnitten aus einem elastischen papier, vorzugsweise einem gekreppten papier, sowie vorrichtung zur durchfuehrung des verfahrens
DE3802390A1 (de) * 1987-11-13 1989-06-01 Pelz Ernst Erpe Vertrieb Einhaengevorrichtung und randverstaerkung fuer flaechige abdeck- und/oder trennelemente sowie verfahren zu ihrer herstellung
US5212001A (en) * 1987-11-19 1993-05-18 Exxon Chemical Patents Inc. Tackified ethylene-acrylate cling layers in stretch/cling films
US5013595A (en) * 1987-11-25 1991-05-07 J. C. Parry & Sons Co., Inc. Stretch film with auxiliary band
US4988471A (en) * 1989-09-15 1991-01-29 Sano, Inc. Apparatus and method of forming a continuous layer of thermoplastic material
US5246416A (en) * 1989-09-29 1993-09-21 Dowbrands L.P. Air separation method and apparatus for pleating a plastic film web
CA2071422C (fr) * 1991-09-06 1996-06-25 Jack N. Shirrell Procede de fabrication de pellicule pre-etiree
GB9201880D0 (en) * 1992-01-29 1992-03-18 Rasmussen O B Laminated films
US5417382A (en) * 1992-03-23 1995-05-23 E. I. Du Pont De Nemours And Company Method and apparatus for winding a web
US5531393A (en) * 1992-05-19 1996-07-02 Salzsauler; Donald J. Stretch film
CA2068908C (fr) 1992-05-19 2000-06-27 Donald J. Salzsauler Film etirable
US5256357A (en) * 1992-05-28 1993-10-26 Eastman Kodak Company Apparatus and method for cocasting film layers
US5520872A (en) * 1993-08-09 1996-05-28 Scherer; Philip G. Method for hemming edges of stretch film
US5494237A (en) * 1994-04-04 1996-02-27 Alexander Machinery, Inc. Oscillatable web guide roll and method of winding
FR2727050A1 (fr) * 1994-11-21 1996-05-24 Bollore Technologies Procede de preparation d'un film ultramince thermoretractable bi-oriente et film ultramince notamment obtenu par ledit procede
FR2748734B1 (fr) * 1996-05-06 1998-07-31 Thimon Film de suremballage, dispositif d'etirage prealable de film et procede de suremballage
US6111019A (en) * 1997-03-31 2000-08-29 Exxon Chemical Patents, Inc. LLDPE blends with an ethylene-norbornene copolymer for resins of improved toughness and processibility for film production
FR2763321B1 (fr) * 1997-05-13 1999-07-23 Thimon Machine pour bobiner du film, procede de fabrication de bobines de films pre-etires et bobines de films pre-etires obtenues par ledit procede
CA2228020C (fr) * 1997-07-30 2006-03-28 Donald J. Salzsauler Methode et appareil de production de rouleaux de materiau en feuille a ame creuse
ATE227669T1 (de) * 1998-06-19 2002-11-15 Marmions Ltd System zum einwickeln mit dehnfolie
US6394330B1 (en) * 1998-08-13 2002-05-28 3M Innovative Properties Company Method for slitting and processing a web into plural use supply forms
US6375781B1 (en) * 1999-10-28 2002-04-23 Illinois Tool Works Inc. Apparatus and high speed process for making highly stretched film
US6592699B1 (en) * 1999-10-28 2003-07-15 Illinois Tool Works, Inc. Process for making stretch film having heat-sealed edges
AR027330A1 (es) 2000-02-09 2003-03-26 Itw Mima Films Llc Un metodo para fabricar pelicula estirada de plastico
DE10007614B4 (de) 2000-02-18 2004-01-29 Heikaus Unternehmensbeteiligungen Und Verwaltung Gmbh Streckfolie und Verfahren zur Herstellung einer Streckfolie
US6170722B1 (en) * 2000-03-28 2001-01-09 Dennis Huang Threading apparatus
DE10152865B4 (de) * 2001-10-25 2005-12-01 Nordenia Deutschland Gronau Gmbh Mehrschichtige Kunststoffverbundfolie mit wenigstens drei Schichten
US6884060B2 (en) * 2001-11-02 2005-04-26 R.P. Scherer Technologies, Inc. Apparatus for manufacturing encapsulated products
US20030189118A1 (en) 2002-04-08 2003-10-09 Smith David J. Pre-stretched film having improved edges
CN100513458C (zh) 2002-09-05 2009-07-15 埃克森美孚化学专利公司 可伸薄膜
US20040146226A1 (en) * 2003-01-24 2004-07-29 Wolak Paul Zygmunt Foldover condiment package film
US20060243842A1 (en) * 2005-04-28 2006-11-02 Martin Guillermo Duran Espinoza Angel Gerardo Santillan Diaz De Leon Pre-stretched wrapping film roll with entrapped air and method
ITBO20050413A1 (it) * 2005-06-22 2006-12-23 Atlanta Stretch Spa Apparato per la produzione di bobine di film estensibile prestirato longitudinalmente e di diverso peso, partendo da normali bobine di film estensibile
CA2534943C (fr) * 2006-02-01 2012-01-31 Thomas F. Clarke Enveloppe multicouche
US7951873B2 (en) * 2006-05-05 2011-05-31 Exxonmobil Chemical Patents Inc. Linear low density polymer blends and articles made therefrom
US20080260305A1 (en) * 2007-04-20 2008-10-23 Shah Gautam P Easy-open/reclosable bag and package
US8221298B2 (en) 2008-07-21 2012-07-17 Paragon Films, Inc. Apparatus and method for folding film edges
IT1395026B1 (it) * 2009-08-05 2012-09-05 Gdm Spa Dispositivo e metodo di applicazione di alette laterali per la realizzazione di pannolini a mutanda.
JP5486370B2 (ja) * 2010-03-25 2014-05-07 ユニ・チャーム株式会社 連続ウエブの処理装置

Also Published As

Publication number Publication date
US20100015422A1 (en) 2010-01-21
US20130059715A1 (en) 2013-03-07
MX2009007154A (es) 2010-03-24
US8100356B2 (en) 2012-01-24
CA2669466A1 (fr) 2010-01-21
CA2669502C (fr) 2014-10-14
MX2009007153A (es) 2010-03-01
US20100012764A1 (en) 2010-01-21
US20130244854A1 (en) 2013-09-19
US20130079210A1 (en) 2013-03-28
CA2669502A1 (fr) 2010-01-21
US8777829B2 (en) 2014-07-15
US8475349B2 (en) 2013-07-02
US8221298B2 (en) 2012-07-17
US20100015393A1 (en) 2010-01-21
MX2009007155A (es) 2010-04-21
CA2669504A1 (fr) 2010-01-21
US20130161860A1 (en) 2013-06-27

Similar Documents

Publication Publication Date Title
CA2669466C (fr) Appareillage et methode permettant de plier les bords de films
CA2068908C (fr) Film etirable
PT1395498E (pt) Processo e dispositivo para produção de um filme para embalagem reforçada, dotada de zonas enfraquecidas reforçadas
AU726288B2 (en) Method and apparatus for producing stretch wrap plastic film
US20140208905A1 (en) Method and apparatus for fabricating stretch film rolls
US9902587B2 (en) Method and apparatus for fabricating stretch film rolls
US20190118454A1 (en) Apparatus, Methods, and Compositions for Producing Oriented Stretch Film In-Process
US20090131618A1 (en) Pre-Stretched Film Roll with Entrapped Air and Method
US10494215B2 (en) Method and apparatus for fabricating stretch film rolls
US20230036082A1 (en) Low Force-To-Stretch Film, Prestretched In-Process, and Compositions Therefore
US9908284B2 (en) Stretch film and method of fabrication therefor
CA2856999C (fr) Methode et appareil servant a la fabrication de rouleaux de pellicule etirable
CA2804518A1 (fr) Procede et appareil pour fabriquer des rouleaux de film etires
JP6856247B2 (ja) 包装用ストレッチフィルムの巻体とその巻き取り製造方法
US20140329655A1 (en) Methods and Apparatus for Producing Stretch Films with Improved Protection From Tear Propagation
CA2686095C (fr) Film etirable et methode de fabrication connexe
KR100656305B1 (ko) 롤백 제조장치
WO2007131684A1 (fr) Appareil et procédé de production de film de plastique
CA2211750A1 (fr) Materiau liant multi-couches en plastique
CA2894909A1 (fr) Procede et appareil de fabrication de rouleaux de film etire

Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20130503